{
  "PERSON": [
    {"id": 10, "name": "!{string}", "age": "!{number}", "BIRTHDAY": "!{within 1d}{{date \"2000-10-10\"}}"}
  ],
  "PERSON_FIELDS": [
    {"id": "111", "name": "b1", "val": "1", "person_id": 10},
    {"id": "222", "name": "b2", "val": "2", "person_id": 10}
  ]
}